Hpally how often do u help with Hammer of Wrath? Macro?

I am wondering if there is a Hammer of Wrath macro for targeting arena 1 2 and 3 all in one macro as usually only one of them gets below 20 percent at a time. I play with a survival hunter in 2s and the hammer has really helped us out at times.
Ive been using target 1 2 3 binds but I was wondering if there is a way to make it a one button macro? Id rather have an all in one macro but also help setting up a modifier macro would be the next best thing for instance press wrath = arena 1 shift press wrath = arena 2 cntrl press wrath and = arena 3